Describe the bug
Using Storm Wing seems to cause A to unbind if its as Strafe Left and has a conflicting keybind, not if anything else is Strafe Left or A is anything else
To Reproduce
Steps to reproduce the behavior:

1. Have A as Strafe Left and something else
2. Activate Storm Wing
3. Use one of the speed boosts
4. Try and strafe left

Expected behavior
Should be able to move normally

Desktop (please complete the following information):

• OS: Windows
• MC Version and Forge version: MC 1.12.2 Forge 14.23.5.2796
• Version 1.1.0 beta4

Duplicated with #651
And we cannot reproduce the bug.

I should also include, in the controls it does not appear to be unbound

I get this bug as well

Breakthrough: It only happens when theres a conflicting keybind
added this information to original post

So I created a mini modpack to test this.
Minecraft version 1.12.2
Forge version 14.23.5.2815

It contains the following mods:
AcademyCraft-1.1.0
Just Enough Items 1.12.2-4.14.267
LambdaLib2-0.1.7

I can diffidently recreate this bug with just these mods.

Just Enough Items has a key called "Add/Remove Bookmarked Ingredients"
This key is set on "A" by default and doesn't show up as a keybind conflict, because it is only used when the inventory is opened.

I used cheats to give myself Vector Manip, Level 5, Learn_All. I put Storm Wing on 1. (Mouse Button 0)
I fly around a bit, cancel the skill and A stops doing anything. You cannot move left.

In the Options > Controls menu, A is still bound to Strafe Left. (It is not actually unbind)
But unbinding the key and rebinding A to Strafe Left will allow you to walk left again.

Edit: (In my case, in Survival Mode, upon using Storm Wing and letting the CP bar Overload and in that way cancel the skill, what happens is that the whole minecraft interface corrupts (it becomes invisible) and the world seems to look very strange after ward.)

Before:

After:

Running Java 8. (build 1.8.0 201-b09)

Edit 2: I noticed that this may be a seperate issue, but considering that the A key will be disabled at 100% chance when this condition also occurs, it could be related. (This is why I refered this topic)

You did a really good job. It does help us a lot. Thanks for you help.

For the problem, you can wait for weathfold to find out why it happens.

Really appreciate you a lot for your feedback.

I wanted to add that I get this bug also with the Flashing teleporter skill.

Fixed.

NOT fixed in AcademyCraft 1.1.2 -190427

@nirvanaxiao6 Please check again

Still getting this bug as of 1.1.2

This bug is still exist in 1.1.3. After using Flashing it occured

I'm also getting this bug in 1.1.2, just to confirm it's still a problem.
Just for testing, I changed the troublesome JEI hotkey to instead be D, and I was still able to move right after using the Flashing ability, so it seems to be something with left specifically.

It might be worth noting this issue happens with any of the movement keys, provided there is a conflicting keybind. For instance, Valkyrien Skies adds control bindings for an airship using the WASD keys, and with that installed, using Flashing or Storm Wing will lock out all 4 keys, unless you rebind the Valkyrien Skies controls to something else, like the arrow keys. Thought it'd be worth noting it wasn't limited to the A key in particular.